/* Reset */
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:Arial,Helvetica,sans-serif;color:#111;background:#f9f9f9;line-height:1.6;}
header,footer{background:#000;color:#fff;}
header{display:flex;align-items:center;justify-content:space-between;padding:0.5rem 1rem;}
header img{width:100px;height:100px;object-fit:contain;}
nav a{color:#fff;text-decoration:none;margin:0 0.75rem;font-size:1rem;transition:opacity .3s;}
nav a:hover{opacity:0.7;}
main{padding:2rem 1rem;max-width:960px;margin:auto;}
footer{padding:1rem;text-align:center;font-size:0.9rem;margin-top:3rem;}

/* Responsive */
@media(max-width:600px){
  nav a{margin:0 0.5rem;font-size:0.9rem;}
  header img{width:70px;height:70px;}
}